void *BLI_thread_queue_pop_timeout(ThreadQueue *queue, int ms)
{
double t;
void *work = NULL;
struct timespec timeout;
t = PIL_check_seconds_timer();
wait_timeout(&timeout, ms);
/* wait until there is work */
pthread_mutex_lock(&queue->mutex);
while (BLI_gsqueue_is_empty(queue->queue) && !queue->nowait) {
if (pthread_cond_timedwait(&queue->push_cond, &queue->mutex, &timeout) == ETIMEDOUT)
break;
else if (PIL_check_seconds_timer() - t >= ms * 0.001)
break;
}
/* if we have something, pop it */
if (!BLI_gsqueue_is_empty(queue->queue)) {
BLI_gsqueue_pop(queue->queue, &work);
if (BLI_gsqueue_is_empty(queue->queue))
pthread_cond_broadcast(&queue->finish_cond);
}
pthread_mutex_unlock(&queue->mutex);
return work;
}
void *BLI_thread_queue_pop(ThreadQueue *queue)
{
void *work= NULL;
/* wait until there is work */
pthread_mutex_lock(&queue->mutex);
while(BLI_gsqueue_is_empty(queue->queue) && !queue->nowait)
pthread_cond_wait(&queue->cond, &queue->mutex);
/* if we have something, pop it */
if(!BLI_gsqueue_is_empty(queue->queue))
BLI_gsqueue_pop(queue->queue, &work);
pthread_mutex_unlock(&queue->mutex);
return work;
}
void BLI_thread_queue_wait_finish(ThreadQueue *queue)
{
/* wait for finish condition */
pthread_mutex_lock(&queue->mutex);
while (!BLI_gsqueue_is_empty(queue->queue))
pthread_cond_wait(&queue->finish_cond, &queue->mutex);
pthread_mutex_unlock(&queue->mutex);
}
void BLI_gsqueue_push(GSQueue *gq, void *item)
{
GSQueueElem *elem;
/* compare: prevent events added double in row */
if (!BLI_gsqueue_is_empty(gq)) {
if(0==memcmp(item, &gq->head[1], gq->elem_size))
return;
}
elem= MEM_mallocN(sizeof(*elem)+gq->elem_size, "gqueue_push");
memcpy(&elem[1], item, gq->elem_size);
elem->next= NULL;
if (BLI_gsqueue_is_empty(gq)) {
gq->tail= gq->head= elem;
} else {
gq->tail= gq->tail->next= elem;
}
}
void BLI_gsqueue_pushback(GSQueue *gq, void *item)
{
GSQueueElem *elem= MEM_mallocN(sizeof(*elem)+gq->elem_size, "gqueue_push");
memcpy(&elem[1], item, gq->elem_size);
elem->next= gq->head;
if (BLI_gsqueue_is_empty(gq)) {
gq->head= gq->tail= elem;
} else {
gq->head= elem;
}
}